Gas-stove.



N. SCHRDER.

GAS STOVE.

APLICATION HLED FEBV 12, 1916.

lalwnted May 16, 1916.

2 SHEETSASHEET I.

/N vm me N 5CH/vana?.

"faku- A TTURNEYJ N. SCHRDER.

GAS STOVE.

APPLICATLON FILED EEB. 12. |916.

Patented May 16, 1916.

2 SHEETS-SHEET 2.

y Ig 5 Hammam INVENTUH N J A TTUHNEY Improvements in Gas-Stoves, of which theI following is a specification.

NIKOLAUS SCHRDER, OF CLEVELAND, OHIO.

Specification of Letters Patent.

Patented Hay 16, 1916.

Application tiled February I2, 1916. Serial No. 77,950.

To all :whom it may concern.'

Be it known that I, NiKoLAUs SCHRDER, a subject of Hungary, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful This invention relates .to gas stoves, and 1s an improvement comprising the construction and arrangement of parts substantially as hereinafter shown and described and more particularly pointed out in the claims.

The objectof the invention is to provide a practical and efficient gas stove of attractive and ornamental foi-.m which may be used safely in a room to heat the air therein without exposing the occupants to any danger or annoyance from the gas or fumes.

A fuith'er'object is to obtain a large area of radiation and a free and uninterrupted flow of airl through the stove.

A further object is to provide means for furnishing` fresh air to the burner of the 'stove from a source outside of the room of the building in which the stove is located.

In the accompanying drawings, Figure 1 is a perspective view of my improved gas stove. Fig. 2 is a vertical section, front to rear, of the stove. lFigs. 3 and'4 are sectional detail views of the protecting device for the burner air supply pipe, these views being taken on line 3 3 and 4- 4, of Figs. 4 and 3, respectively. Fig. 5 is a front View and section looking inward from line 5 5, Fig. 2, a portion of one air flue being also broken away to disclose its interior formation. Fig. 6 is a cross section in planen line 6 6, Fig. 2. Fig. 7 is a cross sectionA in plan of the burner chamber on line 7 7, Fig. 5. Fig. 8 is an enlarged detail view of the gas supply'pipe and the valves connected therewith. Fig. 9 is a side view of the guard or shield which is used in connection with the pilot valve. l

The structural features lof the stove are distinguished in that the main sheet metal body is secured upon andcarried by a cast metal border frame 2 mounted upon a base 3 having corner legs, said frame and body being curved at its front lower portion and extended upwardly and vat an linclination at its upper front-portion. 'An air heating chamber 4 is provided within the rear part ofthe stove. The lower front curved part of the stove `contains a burner chamberv 5, access to which may be had through a `sides of the border frame vT-shaped distributing head 10, and the gas is supplied to pipe 8 through an angular nip` `ple 11 having a valved connection 12 with the gas-supply pipe 13 mounted outside of` the stove. The air is supplied through a vertical branch pipe 14 connected with the bottoni of nipple 11 and having a regulatingl valve 0r damper 15 therein. A lateral extension 16 of pipe 14 supplies fresh lair from a source outside of the room or building containing the stove. and the outerend of vthis extension is provided with a semispherical hood 17 and a gauze closure 18 to guard and protect the intake end of Said air supply pipe from drafta'nd dust. The air distributing tube 8 is divided longitudinally by a wall 19 therein and a series of fresh air outlet orifices 20 are provided on each side of said tube beneath said divisnon Wall opposite the gas burner pipes 9. The gas supply connection 12 is directly opposite the open end of the upper chamber Within pipe 8. and the air which Iis supplied from pipe 14 is mixedrv with the gas and the mixture carried forward to the burner pipes through said uppei` chamber. On the other hand, a portion of the air supplied to pipe 14 is also free to pass into the lower divisional space within pipe S'and out of the orifices 2O so as to supply the burner chamber 5 with a snp ply of fresh air and promote combustion at the burner pipes 9, and the air and mixture is also preheated by the arrangement and relationship of pipes as described.

The products of combustion and the heatnot otherwise radiated through the .walls of chamber 5 pass upwardlythrough a series of rectangular fiue `boxes or tubes 21 arranged in stepped relationship at the rear and top of the. stove between the extended Each iue box has a central communicating passage at its front and bottoni. the irst or lower fliul box 21 communicating in this way with chamber 5, and the next higher or middle box having its passage 22 opening into the rear of the first mentioned box, .whereas the last or upper box 21 in the tier is open at 22 lto the middle box 21. The finaldischargc from the stove is through a short neck 23 at the rear of the upper box Q1, and any suitable pipe connection may be made therewith, and if preferred this connection may be hidden by an ornamental crown member 24 forming part of the border frame 2. Each flue box 2l has a Walled passage 25 extend- 'therethrough from top to bottom througi'i 'which the air from chamber 4 is permitted to rise and Iescape. The walled passage 25 is relatively long andnarrow 'in ,width and divides the iiue box longitudinally so as to cause the products of combusu tion to pass to opposite ends of each box before escaping into the-next higher Hue box. utilized in the most eiiective Way to radiate the heat, and the number of fiue boxes made and arranged in this Way lmay be greatly augmented Without seriously affecting the natural draft necessary to carry away the fumes from the burner chamber 5.

Lighting of the gas burner maybe effected at the side of the stove by first igniting a valved pilot light 2G which is affixed to gas supply pipe 13 opposite a guarded entrance opening 27 in the side wall of theA burner chamber 5. The guard or closure for this opening 27 comprises a plate 28, and an opening29 at one side of the center of this plate is adapted to register with opening 27 when the plate is moved to its maximum distance 'to the right by engaging the projecting finger 30 'which extends through the segmental slot 31 within the housing 32, see Figs. 8 and 9.

The main walls of the stove are made of sheet metal, preferably, and all joints securely sealed, the door 6 being also mounted to maintain close sealing relations with the border frame `and having a suitable lockingl handle 34 to assure a tight lit vat all points. Any suitable sealing material, such as strips of asbestos, may be used to close the joints in the stove.

Vhat l claim is:

1. In a gas stove, a casing having a combustion chamber at its front and an air chamber at its rear, and a series of stepped boxes in open communication with said com bustion chamber and each other at the top of said air chamber and having Walled air passages extending vertically therethrough. 2. A. gas stove body having a burner chamber at its front and a tier of flue boxes in T he full area of ,each flue box is thusstepped relation at its rear in open communication centrally with said burner chainber and each other, each flue box having a walled air passage dividing the box into separate circulating passages.

3. A' gas stove comprising a chamber/ed body having a curved front and offset portions at its rear upper end, said offset portions having air passages vertically there through, in combination With a gas burner within the lower front end of said body,

4. A gas stove body having a burner chanber at its front and a tier of rectangular flue boxes in stepped relation at its rear and in open'communication centrally with the upper nd of said burner chamber and each iother", each flue box having a vertical walled air passage extending longitudinally Within a relatively short distance of the opposite ends of the box.

5. A gas. stove having a burner chamber and a series of stepped tubular Hue boxes' open thereto, and a gas burner having separate gas and air connections and a divided tube for distributing a gaseous mixture and fresh air separately to said burner and chamber. l v

6. A gas stove having a burner chamber at its front and stepped flue-boxes at its rear, a

gas burner within said chamber, valved gas.

chamber having a valved gas connection'ex-v tending into one side of said chamber and.' a valved air pipe projecting downwardly through the bottom thereof, and a horizontal air intake pipe lfor said valved pipe' having a draft protector at its end. In testimony whereof I aiiix my signature in presence of tv vo witnesses. A NIKOLAU'S SCHR( )DER Witnesses:

Geo. E. Karolien,-

F. C. HARRoLo; 

